<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>轮播效果1</title>
</head>
<style>
     * {
            padding: 0;
            margin: 0;
        }
    div {
            margin: 30px;
        } 
    .box{
        width: 400px;
            height: 200px;
            border: 1px solid red;
            position: relative;
    }
    .box1{
        width: 10px;
        height: 10px;
        border: 1px solid blue;
        top:20px;
        left:50px;
    }
    .box2{
        width: 10px;
        height: 10px;
        border: 1px solid blue;
        top:20px;
        left:40px;
    }
    .box3{
        width: 10px;
        height: 10px;
        border: 1px solid blue;
        top:20px;
        left:30px;
    }
    .box4{
        width: 10px;
        height: 10px;
        border: 1px solid blue;
        top:20px;
        left:20px;
    }
    .box5{
        width: 10px;
        height: 10px;
        border: 1px solid blue;
        top:20px;
        left:10px;
    }
</style>
<body>
    <img src="img/11.jpg" alt="a">
    <div class="box">
        <div class="box1">1</div>
        <div class="box2">2</div>
        <div class="box3">3</div>
        <div class="box4">4</div>
        <div class="box5">5</div>
    </div>
</body>
</html>